On Stage LS7720BLT Lighting Stand With Side Bars 100789798 AIR12 loudspeakers use the respective

AIR12 loudspeakers use the respective strengths of Class D and Class A/B amplifiers to provide optimal response throughout the speaker's frequency range

and Mackie SRM450s

Pan control knob

Used to retain the power supply cable and eliminate accidental disconnect

Built-in internal programs

On Stage LS7720BLT Lighting Stand With Side Bars 100789798 AIR12 loudspeakers use the respectiveOn Stage LS7720BLT Lighting Stand With Side Bars This classic stand allows for maximum height adjustments and will support up to 8 par cans. The stand adjusts with friction adjustment knobs and the locking pins can be used for added security. The top T bar holds up to 4 par cans, while the side mount bars will hold an additional 4 par cans. Features: 1 T bar and 2 side bars Holds 8 par cans 3 Shaft, 2 clutch system 10 1 2' Max height 110 lbs. weight